System and method for constructing fault-augmented system model for root cause analysis of faults in manufacturing systems

A computer system, the system comprising:

• a processor;
• and
• a storage device storing instructions that when executed by the processor cause the processor to perform a method, the method comprising:
• storing data associated with a processing system which includes machines and associated processes, wherein the data includes timestamp information, machine status information, and product-batch information;
• determining, based on the data, a topology of the processing system, wherein the topology indicates flows of outputs between the machines as part of the processes;
• determining information of machine faults in association with the topology;
• generating, based on the machine-fault information, one or more fault parameters which indicates frequency and severity of a respective fault;
• and
• constructing, based on the topology and the machine-fault information, a system model which includes the one or more fault parameters, thereby facilitating diagnosis of the processing system.

An apparatus, comprising:

• a data-storing module configured to store data associated with a manufacturing system which includes machines and associated processes, wherein the data includes timestamp information, machine status information, and product-batch information;
• a topology-determining module configured to determine, based on the data, a topology of the manufacturing system, wherein the topology indicates flows of outputs between the machines as part of the processes;
• a fault information-determining module configured to determine information of machine faults in association with the topology;
• a fault-parameter-generating module configured to generate, based on the machine-fault information, one or more fault parameters which indicates frequency and severity of a respective fault;
• and
• a model-constructing module configured to construct, based on the topology and the machine-fault information, a system model which includes the one or more fault parameters, thereby facilitating diagnosis of the manufacturing system.